
A monoplane with a variable geometry wing, designed by Hauptmann Rudolf Vorauer from Graz, in what is now Austria, in 1910. Vorauer had the rank of Artilleriehauptmann in the k.u.k. Armee.

A monoplane with a variable geometry wing, designed by Hauptmann Rudolf Vorauer from Graz, in what is now Austria, in 1910. Vorauer had the rank of Artilleriehauptmann in the k.u.k. Armee.